Multifunctional USB Digital Tester - USB A and C

At first glance, it might look like an electronic shuriken, but it's truly a remarkable Multifunctional USB Digital Tester! This useful tool can measure voltage, current, power, charge time, and more for USB A, Micro B, and USB C ports. Once you plug in a power supply, a colorful display lights up. Each button - click switches the display and readout, and a long - press resets the data for Coulomb - counting (total power consumption). We love the initial simple display showing large Voltage and Current outputs, and you've got plenty of other options too. It comes with 4 connectors, enabling you to connect type A to C, type A to A, or type C to C. It works like a charm with laptops, smartphones, tablets, and any USB power setup. This model stands out as it's also great for USB C, handling higher current and voltage up to 32V and 5A! When testing USB C, make sure to use a cable with E - Mark power negotiation chips to get the right current and voltage. Many cheap USB C cables lack these chips and won't perform well for high - current/voltage charging.

Using this Multifunctional USB Digital Tester is easy. First, connect the device to your power source using one of the 4 connectors available (A to C, A to A, or C to C). Once connected, the colorful display will light up. To view different measurements, just click the button. If you want to reset the data for Coulomb - counting, give the button a long press. When using it with USB C devices, remember to use a cable with E - Mark power negotiation chips. This will ensure you get the proper current and voltage for accurate testing. As for maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. If the display seems dim or there are issues with the readouts, check the connection to the power source. With proper use and care, this tester will serve you well for all your USB power testing needs.